PHP array schema bug

Description

Created model for ErrorItemsVas has empty constructor and has no getters/setter, model wasnt treated as model for arrays (didnt contain [] in model name). When I removed this schema and replaced ref with its contents I was able to generate a correct model.

Swagger-codegen version

was using this docker container: swaggerapi/swagger-codegen-cli-v3:3.0.7

Swagger declaration file content or url

schema

ErrorItemsVas:
  type: array
  description: 'Список идентификаторов, которые не удалось обработать по разным причинам (например, они не принадлежат текущему пользователю)'
  items:
    type: integer

usage

  responses:
    '200':
      x-examples:
        application/json:
          vas:
            '1163461995':
              premium: 419
              vip: 179
              pushup: 119
              highlight: 119
              xl: 199
          errors:
            - '1358611169'
      description: Успешный ответ
      content:
        application/json:
          schema:
            type: object
            properties:
              vas:
                $ref: '#/components/schemas/PriceInfoVas'
              errors:
                $ref: '#/components/schemas/ErrorItemsVas'

Command line used for generation

I was also using this params in my config file:
"modelPackage": "Model", "apiPackage": "Api", "invokerPackage": "my\\project\\path"

Reproduce the generated PHP model from the ErrorItemsVas array schema using swaggerapi/swagger-codegen-cli-v3:3.0.7 and the listed modelPackage and apiPackage settings. No source file or test is named; done means the referenced array schema generates a usable model with the expected constructor and getters/setters.